O2 Czech Republic, a.s. operates AS31246: 5 IPv4 prefixes covering 66,560 addresses, most of them in 
Czechia.
By IPv4 addresses the network ranks #2,612 worldwide and #16 of 562 networks in Czechia. That is 0.77% of the country’s IPv4 space.
The largest block is 83.240.0.0 to 83.240.127.255 with 32,768 addresses, geolocated to Rozdrojovice (Brno-Bystrc).
- IPv4 addresses
- 66,560
- IPv4 prefixes
- 5
- World rank
- #2,612
- Country share
- 0.77%
- IPv6 ranges
- 2
Addresses by country
- Czechia 100%
Largest blocks
- 83.240.0.0 Rozdrojovice (Brno-Bystrc)32,768
- 95.82.128.0 Brno (Brno-Bystrc)16,384
- 213.155.224.0 Nový Jičín8,192
- 46.39.160.0 Brno (Brno-Bystrc)8,192
- 185.51.240.0 Brno (Brno-Bystrc)1,024
Networks of similar size
66,816
66,560
66,560
66,560
66,560IPv4 prefixes
Questions and answers
Who owns AS31246?
Autonomous system AS31246 is operated by O2 Czech Republic, a.s..
How many IP addresses does AS31246 have?
The network holds 66,560 IPv4 addresses in 5 prefixes, plus 2 IPv6 ranges.
Which country is AS31246 in?
The main country is Czechia.
How big is AS31246?
By IPv4 addresses it ranks #2,612 worldwide.
What is the largest address block of AS31246?
83.240.0.0 to 83.240.127.255, 32,768 addresses.